Finding the Fourth Proportional to 135,855.08, 187,437.90 and 79,226.36
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Solution
The fourth proportional to 135,855.08, 187,437.90 and 79,226.36 is: 109,307.82
Step by Step Solution
- Step 1: Write the proportion equation
135,855.08 : 187,437.90 = 79,226.36 : x - Step 2: Convert to fraction form
135,855.08/187,437.90 = 79,226.36/x - Step 3: Cross multiply
135,855.08x = 187,437.90 × 79,226.36 - Step 4: Simplify right side
135,855.08x = 14,850,022,543.04 - Step 5: Solve for x
x = 14,850,022,543.04/135,855.08 - Step 6: Final answer
x = 109,307.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.